@misc{indiciae98ee60253448,
  title = {Relation between bone erosions and rheumatoid factor isotypes.},
  author = {J A Arnason and T Jónsson and A Brekkan and K Sigurjónsson and H Valdimarsson},
  year = {1987},
  doi = {10.1136/ard.46.5.380},
  url = {https://pubmed.ncbi.nlm.nih.gov/3592799/},
  note = {Source identifier: 3592799}
}